Expected the adapter to be 'fresh' while restoring state

Question

I have a viewpager2 with multiple fragments in FragmentStateAdapter. Whenever I try to open a new fragment and then go back to my current one with viewpager2, I get an exception

Answer 1

I encountered the same problem with ViewPager2. After a lot of efforts on testing different methods this worked for me:

public void onExitOfYourFragment() {
    viewPager2.setAdapter(null);
}

When you come back to the fragment again:

public void onResumeOfYourFragment() {
    viewPager2.setAdapter(yourAdapter);
}